I went out to get the plate + strap offered by Carry Speed. It does just what I need, but there is one problem: the CarrySpeed plate is too big for smaller sizes DSLRs. I have a Canon T2i and when the plate is in place it blocks the battery door. So no deal.

I contacted BlackRapid and they mentioned they are coming up with a new plate that will be ARCA-SWISS compatible it should be released in March. Hopefully this one will not block my battery door..